CARB Catalytic Converter – 2.25" Universal Fit - MagnaFlow 408005

Stay street-legal in California and other CARB-restricted states with the MagnaFlow 408005 California Grade Universal Catalytic Converter (2.25” inlet/outlet). Built to meet and exceed California Air Resources Board (CARB) Tier 1 requirements, this converter is designed to reduce harmful emissions while keeping the check engine light off.

Made from highly corrosion-resistant stainless steel, the MagnaFlow 408005 features a ribbed, welded body that prevents expansion and distortion under extreme heat cycles. Inside, its advanced ceramic honeycomb substrate is engineered to optimize exhaust flow while effectively converting pollutants—delivering both reliability and performance.

This universal fit converter is adaptable for a wide range of vehicles, including custom Miata exhaust builds, but requires cutting and welding for installation. Its 2.25-inch inlet/outlet diameter makes it ideal for lightweight performance cars like the Mazda MX-5 Miata and other vehicles running similar pipe sizes.

Key Specs:

• Inlet/Outlet Diameter: 2.25”

• Compliance: CARB legal for California and CARB states

• Construction: Stainless steel, round body

• Installation: Universal fit – cutting and welding required

Perfect for enthusiast Miata owners, daily drivers, and track-day racers living in CARB states, the MagnaFlow 408005 CARB-Compliant Converter provides peace of mind, long-lasting durability, and proven MagnaFlow performance.

This Part Fits: